Tag: M.W=300-350

Owen, John T. R. published the artcileX-ray powder diffraction data for nine medicinal 2-imidazolines, Formula: C17H20ClN3, the publication is Journal – Association of Official Analytical Chemists (1981), 64(5), 1164-73, database is CAplus.

X-ray powder diffraction data for 9 2-imidazolines were obtained by the powder diffractometer and by the photog. Debye-Scherrer techniques. The data for individual 2-imidazolines are tabulated in terms of lattice spacings (d in Å) and the relative intensities of lines. The best method of packing for powder diffraction was investigated. It was advantageous to Cr Kα radiation in the Debye-Scherrer technique.

Journal – Association of Official Analytical Chemists published new progress about 2508-72-7. 2508-72-7 belongs to imidazoles-derivatives, auxiliary class Inhibitor,Immunology/Inflammation,Histamine Receptor, name is N-Benzyl-N-((4,5-dihydro-1H-imidazol-2-yl)methyl)aniline hydrochloride, and the molecular formula is C17H20ClN3, Formula: C17H20ClN3.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Zakhari, N. Aziz published the artcileNonaqueous titration of halides of nitrogenous bases, using trifluoromethyl sulfonic acid, Application of N-Benzyl-N-((4,5-dihydro-1H-imidazol-2-yl)methyl)aniline hydrochloride, the publication is Journal – Association of Official Analytical Chemists (1986), 69(4), 620-4, database is CAplus.

CF₃SO₃H (I) [1493-13-6] in AcOH was compared with HClO₄ as a titrant in 4 solvent systems: AcOH, Ac₂O, a mixture of both, and Me₂CO. The comparison was limited to the determination of halides of nitrogenous bases with and without the use of Hg(AcO)₂  [1600-27-7]. The results for the visual titrations showed that both acids are comparable titrants. However, I was superior to HClO₄ in potentiometric titrations carried out in AcOH-Ac₂O mixtures Moreover, the nonoxidizing properties exhibited by I were advantageous over HClO₄ in the visual detection of end points in the titration of phenothiazine derivatives in anhydrous AcOH using crystal violet indicator.

Journal – Association of Official Analytical Chemists published new progress about 2508-72-7. 2508-72-7 belongs to imidazoles-derivatives, auxiliary class Inhibitor,Immunology/Inflammation,Histamine Receptor, name is N-Benzyl-N-((4,5-dihydro-1H-imidazol-2-yl)methyl)aniline hydrochloride, and the molecular formula is C30H40N2O4, Application of N-Benzyl-N-((4,5-dihydro-1H-imidazol-2-yl)methyl)aniline hydrochloride.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Marciniec, Barbara published the artcileThermal study of four irradiated imidazoline derivatives in solid state, HPLC of Formula: 2508-72-7, the publication is Journal of Thermal Analysis and Calorimetry (2007), 88(2), 337-342, database is CAplus.

Four imidazoline derivatives: antazoline (AN), naphazoline (NN), tymazoline (TM), xylometazoline (XM), in the form of hydrochlorides in solid phase have been subjected to high energy e-beam irradiation from an accelerator (≈10 MeV) at a dose varied from 25 to 200 kGy. The effects of the irradiation have been assessed by DSC, X-ray diffraction, FTIR, EPR and TLC. The standard sterilization dose of 25 kGy has been found to produce changes in the properties of one derivative (XM), two other ones (AN and TM) have been found sensitive to doses >100 kGy, whereas NN has been resistant to irradiation in the whole range studied (25-200 kGy). EPR results indicated that the changes taking place in the therapeutic substances studied are related to radical formation. The irradiation induced changes in color, a decrease or increase in the m.p., changes in the XRD pattern, small changes in the shape of FTIR peaks and the presence of radiolysis products. The XM compounds cannot be sterilized by irradiation because of the radiation induced changes in its physico-chem. properties.

Journal of Thermal Analysis and Calorimetry published new progress about 2508-72-7. 2508-72-7 belongs to imidazoles-derivatives, auxiliary class Inhibitor,Immunology/Inflammation,Histamine Receptor, name is N-Benzyl-N-((4,5-dihydro-1H-imidazol-2-yl)methyl)aniline hydrochloride, and the molecular formula is C17H20ClN3, HPLC of Formula: 2508-72-7.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Van Gyseghem, E. published the artcileOrthogonality and similarity within silica-based reversed-phased chromatographic systems, Application In Synthesis of 2508-72-7, the publication is Journal of Chromatography A (2005), 1074(1-2), 117-131, database is CAplus and MEDLINE.

The starting point of this study was a current set of 32 chromatog. systems used to select initial conditions for method development to determine the impurity profile of a drug. The system exhibiting the best selectivity is then selected for further method development. In this current set eight silica-based phases are applied in conjunction with four mobile phases at different pH. In order to save time and resources, the possibilities for a meaningful subset selection were investigated. The most differing systems in terms of selectivity, in other words only the most orthogonal systems, need to be selected. Since the stationary phases are all silica-based, the selectivity differences are examined within a more homogeneous group than if, for instance, also zirconia- or polymer-based columns would be involved. To select the subset of systems also the best overall separation performances are taken into account. The selection is based both on the HPLC-DAD data of a generic set of 68 drugs, and on the LC-MS-DAD results for a mixture of 15 drugs, less different in structure. The orthogonality was evaluated using weighted-average-linkage dendrograms and color maps, both created from the Pearson-correlation coefficients r between normalized retention times τ. The Derringer’s desirability functions are applied to define the systems with the best overall separation performances. Proposals for different representative subsets of the initial 32 systems are made.

Journal of Chromatography A published new progress about 2508-72-7. 2508-72-7 belongs to imidazoles-derivatives, auxiliary class Inhibitor,Immunology/Inflammation,Histamine Receptor, name is N-Benzyl-N-((4,5-dihydro-1H-imidazol-2-yl)methyl)aniline hydrochloride, and the molecular formula is C9H20Cl2Si, Application In Synthesis of 2508-72-7.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Varga, Janos M. published the artcileMechanism of allergic cross-reactions. I. Multispecific binding of ligands to a mouse monoclonal anti-DNP IgE antibody, Related Products of imidazoles-derivatives, the publication is Molecular Immunology (1991), 28(6), 641-54, database is CAplus and MEDLINE.

A recently developed solid-phase binding assay was used to investigate the specificity of ligand binding to a mouse monoclonal anti-dinitrophenyl IgE (I). All DNP-amino acids, that were tested inhibited the binding of the radio-labeled I to DNP covalently attached to polystyrene microplates; however, the concentration for 50% inhibition varied within four orders of magnitude, DNP-L-serine being the most and DNP-L-proline the least potent inhibitor. In addition to DNP analogs, a large number of drugs and other compounds were tested for their ability to compete with DNP for the binding site of I. At the concentration used for screening, 59% of compounds had no significant inhibition; 19% inhibited the binding of I more than 50%. Several families of compounds (tetracyclines, polymyxins, phenothiazines, salicylates, and quinones) that were effective competitors were found. Within these families, changes in the functional groups attached to the family stem had major effects on the affinity of ligand binding. The occurrence frequencies of interactions of ligands with I is in good agreement with the semi-empirical model for multispecific antibody-ligand interactions.

Molecular Immunology published new progress about 2508-72-7. 2508-72-7 belongs to imidazoles-derivatives, auxiliary class Inhibitor,Immunology/Inflammation,Histamine Receptor, name is N-Benzyl-N-((4,5-dihydro-1H-imidazol-2-yl)methyl)aniline hydrochloride, and the molecular formula is C20H19NO4, Related Products of imidazoles-derivatives.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Radwanska, A. published the artcileComparative analysis of effects of imidazoline drugs on isolated rat heart atria, SDS of cas: 2508-72-7, the publication is Journal of Physiology and Pharmacology (1993), 44(1), 73-87, database is CAplus and MEDLINE.

Effects of cumulative concentrations of 16 known imidazoline and 2 imidazole drugs on amplitude and rate of spontaneously beating isolated rat heart atria were measured and related to the resp. effects induced by norepinephrine. In addition, the effects of fixed concentrations of the agents on the responses evoked by cumulative concentrations of norepinephrine were determined In general, imidazolines classified as α₁-adrenoceptor agonists showed pos. inotropic activity providing evidence of involvement of the α₁-adrenoceptor in mediating cardiac contractility. A neg. chronotropic effect was common for the imidazolines studied, including α₁-adrenoceptor agonists, α₂-adrenoceptor agonists, α₁/α₂-adrenoceptor antagonists and antazoline – an antihistaminergic imidazolkine devoid of adrenoceptor affinity. On the other hand, the imidazole derivative, medetomidine, showed a weak pos. chronotropic activity. Neg. chronotropic properties appeared to be independent of the alpha-adrenoceptors and may result from the membrane stabilizing action, involving probably the sodium channel blockage.

Journal of Physiology and Pharmacology published new progress about 2508-72-7. 2508-72-7 belongs to imidazoles-derivatives, auxiliary class Inhibitor,Immunology/Inflammation,Histamine Receptor, name is N-Benzyl-N-((4,5-dihydro-1H-imidazol-2-yl)methyl)aniline hydrochloride, and the molecular formula is C17H20ClN3, SDS of cas: 2508-72-7.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Shahar, Or David published the artcileA high-throughput chemical screen with FDA approved drugs reveals that the antihypertensive drug Spironolactone impairs cancer cell survival by inhibiting homology directed repair, Category: imidazoles-derivatives, the publication is Nucleic Acids Research (2014), 42(9), 5689-5701, database is CAplus and MEDLINE.

DNA double-strand breaks (DSBs) are the most severe type of DNA damage. DSBs are repaired by non-homologous end-joining or homol. directed repair (HDR). Identifying novel small mols. that affect HDR is of great importance both for research use and therapy. Mols. that elevate HDR may improve gene targeting, whereas inhibiting mols. can be used for chemotherapy, since some of the cancers are more sensitive to repair impairment. Here, the authors performed a high-throughput chem. screen for FDA approved drugs, which affect HDR in cancer cells. The authors found that HDR frequencies are increased by retinoic acid and Idoxuridine and reduced by the antihypertensive drug Spironolactone. The authors further revealed that Spironolactone impairs Rad51 foci formation, sensitizes cancer cells to DNA damaging agents, to Poly (ADP-ribose) polymerase (PARP) inhibitors and crosslinking agents and inhibits tumor growth in xenografts, in mice. This study suggests Spironolactone as a new candidate for chemotherapy.

Nucleic Acids Research published new progress about 2508-72-7. 2508-72-7 belongs to imidazoles-derivatives, auxiliary class Inhibitor,Immunology/Inflammation,Histamine Receptor, name is N-Benzyl-N-((4,5-dihydro-1H-imidazol-2-yl)methyl)aniline hydrochloride, and the molecular formula is C19H34ClN, Category: imidazoles-derivatives.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Shoukry, Adel F. published the artcileAtomic emission spectrophotometric determination of antazoline, hydralazine, amiloride hydrochlorides, and quinine sulfate based on formation of ion associates with manganese thiocyanate, Recommanded Product: N-Benzyl-N-((4,5-dihydro-1H-imidazol-2-yl)methyl)aniline hydrochloride, the publication is Analyst (Cambridge, United Kingdom) (1995), 120(4), 1211-13, database is CAplus.

Ion associate complexes of the hydrochlorides of antazoline (1), hydralazine (2) and amiloride (3), and quinine sulfate (4) with [Mn(SCN)₄]^2- were precipitated and their solubilities were studied as a function of pH, ionic strength and temperature The optimum conditions for the complete precipitation of the ion associate were, thus, elucidated. An accurate and precise method using at. emission spectrometry for the determination of the investigated drugs in pure solutions and in pharmaceutical preparations is reported. The drugs can be determined by this method in the ranges 0.3-3.0, 0.19-1.96, 0.3-3.0 and 0.78-7.82 mg per 25 mL solutions of (1), (2), (3) and (4), resp.

Analyst (Cambridge, United Kingdom) published new progress about 2508-72-7. 2508-72-7 belongs to imidazoles-derivatives, auxiliary class Inhibitor,Immunology/Inflammation,Histamine Receptor, name is N-Benzyl-N-((4,5-dihydro-1H-imidazol-2-yl)methyl)aniline hydrochloride, and the molecular formula is C6H9N3, Recommanded Product: N-Benzyl-N-((4,5-dihydro-1H-imidazol-2-yl)methyl)aniline hydrochloride.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Marrero-Ponce, Yovani published the artcileLigand-Based Virtual Screening and in Silico Design of New Antimalarial Compounds Using Nonstochastic and Stochastic Total and Atom-Type Quadratic Maps, Quality Control of 2508-72-7, the publication is Journal of Chemical Information and Modeling (2005), 45(4), 1082-1100, database is CAplus and MEDLINE.

Malaria has been one of the most significant public health problems for centuries. It affects many tropical and subtropical regions of the world. The increasing resistance of Plasmodium spp. to existing therapies has heightened alarms about malaria in the international health community. Nowadays, there is a pressing need for identifying and developing new drug-based antimalarial therapies. In an effort to overcome this problem, the main purpose of this study is to develop simple linear discriminant-based quant. structure-activity relation (QSAR) models for the classification and prediction of antimalarial activity using some of the TOMOCOMD-CARDD (TOpol. Mol. COMputer Design-Computer Aided “Rational” Drug Design) fingerprints, to enable computational screening from virtual combinatorial datasets. In this sense, a database of 1562 organic chems. having great structural variability, 597 of them antimalarial agents and 965 compounds having other clin. uses, was analyzed and presented as a helpful tool, not only for theor. chemists but also for other researchers in this area. This series of compounds was processed by a k-means cluster anal. to design training and predicting sets. Afterward, two linear classification functions were derived to discriminate between antimalarial and nonantimalarial compounds The models (including nonstochastic and stochastic indexes) correctly classify more than 93% of the compound set, in both training and external prediction datasets. They showed high Matthews’ correlation coefficients, 0.889 and 0.866 for the training set and 0.855 and 0.857 for the test one. The models’ predictivity was also assessed and validated by the random removal of 10% of the compounds to form a new test set, for which predictions were made using the models. The overall means of the correct classification for this process (leave group 10% full-out cross validation) using the equations with nonstochastic and stochastic atom-based quadratic fingerprints were 93.93% and 92.77%, resp. The quadratic maps-based TOMOCOMD-CARDD approach implemented in this work was successfully compared with four of the most useful models for antimalarials selection reported to date. The developed models were then used in a simulation of a virtual search for Ras FTase (FTase = farnesyltransferase) inhibitors with antimalarial activity; 70% and 100% of the 10 inhibitors used in this virtual search were correctly classified, showing the ability of the models to identify new lead antimalarials. Finally, these two QSAR models were used in the identification of previously unknown antimalarials. In this sense, three synthetic intermediaries of quinolinic compounds were evaluated as active/inactive ones using the developed models. The synthesis and biol. evaluation of these chems. against two malaria strains, using chloroquine as a reference, was performed. An accuracy of 100% with the theor. predictions was observed Compound 3 showed antimalarial activity, being the first report of an arylaminomethylenemalonate having such behavior. This result opens a door to a virtual study considering a higher variability of the structural core already evaluated, as well as of other chems. not included in this study. We conclude that the approach described here seems to be a promising QSAR tool for the mol. discovery of novel classes of antimalarial drugs, which may meet the dual challenges posed by drug-resistant parasites and the rapid progression of malaria illnesses.

Journal of Chemical Information and Modeling published new progress about 2508-72-7. 2508-72-7 belongs to imidazoles-derivatives, auxiliary class Inhibitor,Immunology/Inflammation,Histamine Receptor, name is N-Benzyl-N-((4,5-dihydro-1H-imidazol-2-yl)methyl)aniline hydrochloride, and the molecular formula is C17H20ClN3, Quality Control of 2508-72-7.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Aboul-Enein, Hassan Y. published the artcileNMR spectrometric analysis of antazoline, Application In Synthesis of 2508-72-7, the publication is Spectroscopy Letters (1978), 11(12), 931-8, database is CAplus.

¹H NMR is used for the anal. of antazoline-HCl (I-HCl) [2508-72-7]. The procedure provides good quant. results together with a very specific mean for identification of I.

Spectroscopy Letters published new progress about 2508-72-7. 2508-72-7 belongs to imidazoles-derivatives, auxiliary class Inhibitor,Immunology/Inflammation,Histamine Receptor, name is N-Benzyl-N-((4,5-dihydro-1H-imidazol-2-yl)methyl)aniline hydrochloride, and the molecular formula is C17H20ClN3, Application In Synthesis of 2508-72-7.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem